Tensorflow REST URL endpoints look like this: http://host:port/v1/models/${MODEL_NAME}[/versions/${VERSION}|/labels/${LABEL}]:predict
Where the URL ends in ":predict", rather than in ":1000" a number/port like I would expect. Why does this work? Are there some other example URL endpoints that use this schema of a word rather than a number? I'm having a hard time googling for this concept so would love if stackoverflow can point me to a vocab term I'm missing.
URLs don't end in a port. If there is a non-standard port, that port shows up right after the host (domain), but before the path.
The :predict part of your URL is simply part of the 'path' part of the URL. It doesn't have a special meaning fur URLs generally, but may have a special meaning for the specific API you're working with.